mirror of
https://github.com/chrislusf/seaweedfs
synced 2024-09-04 08:00:36 +02:00
88 lines
2.3 KiB
Go
88 lines
2.3 KiB
Go
package mount
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"github.com/chrislusf/seaweedfs/weed/glog"
|
|
"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
|
|
"github.com/hanwen/go-fuse/v2/fuse"
|
|
"math"
|
|
"time"
|
|
)
|
|
|
|
const blockSize = 512
|
|
|
|
type statsCache struct {
|
|
filer_pb.StatisticsResponse
|
|
lastChecked int64 // unix time in seconds
|
|
}
|
|
|
|
func (wfs *WFS) StatFs(cancel <-chan struct{}, in *fuse.InHeader, out *fuse.StatfsOut) (code fuse.Status) {
|
|
|
|
// glog.V(4).Infof("reading fs stats")
|
|
|
|
if wfs.stats.lastChecked < time.Now().Unix()-20 {
|
|
|
|
err := wfs.WithFilerClient(false, func(client filer_pb.SeaweedFilerClient) error {
|
|
|
|
request := &filer_pb.StatisticsRequest{
|
|
Collection: wfs.option.Collection,
|
|
Replication: wfs.option.Replication,
|
|
Ttl: fmt.Sprintf("%ds", wfs.option.TtlSec),
|
|
DiskType: string(wfs.option.DiskType),
|
|
}
|
|
|
|
glog.V(4).Infof("reading filer stats: %+v", request)
|
|
resp, err := client.Statistics(context.Background(), request)
|
|
if err != nil {
|
|
glog.V(0).Infof("reading filer stats %v: %v", request, err)
|
|
return err
|
|
}
|
|
glog.V(4).Infof("read filer stats: %+v", resp)
|
|
|
|
wfs.stats.TotalSize = resp.TotalSize
|
|
wfs.stats.UsedSize = resp.UsedSize
|
|
wfs.stats.FileCount = resp.FileCount
|
|
wfs.stats.lastChecked = time.Now().Unix()
|
|
|
|
return nil
|
|
})
|
|
if err != nil {
|
|
glog.V(0).Infof("filer Statistics: %v", err)
|
|
return fuse.OK
|
|
}
|
|
}
|
|
|
|
totalDiskSize := wfs.stats.TotalSize
|
|
usedDiskSize := wfs.stats.UsedSize
|
|
actualFileCount := wfs.stats.FileCount
|
|
|
|
if wfs.option.Quota > 0 && totalDiskSize > uint64(wfs.option.Quota) {
|
|
totalDiskSize = uint64(wfs.option.Quota)
|
|
if usedDiskSize > totalDiskSize {
|
|
totalDiskSize = usedDiskSize
|
|
}
|
|
}
|
|
|
|
// Compute the total number of available blocks
|
|
out.Blocks = totalDiskSize / blockSize
|
|
|
|
// Compute the number of used blocks
|
|
numBlocks := uint64(usedDiskSize / blockSize)
|
|
|
|
// Report the number of free and available blocks for the block size
|
|
out.Bfree = out.Blocks - numBlocks
|
|
out.Bavail = out.Blocks - numBlocks
|
|
out.Bsize = uint32(blockSize)
|
|
|
|
// Report the total number of possible files in the file system (and those free)
|
|
out.Files = math.MaxInt64
|
|
out.Ffree = math.MaxInt64 - actualFileCount
|
|
|
|
// Report the maximum length of a name and the minimum fragment size
|
|
out.NameLen = 1024
|
|
out.Frsize = uint32(blockSize)
|
|
|
|
return fuse.OK
|
|
}
|